I used to love castyourenthusiasm, it's lost of cast bondage. but the main girl (Christina) in it loves tickling the other girls , they also have two other sites that are bondage orientated as well. and again Christina a lot of the time will tickle the girls that are bound up. conversationpeice was one of the other two that i really liked. very good vids, but short, and the're not that intense. but i didn't mind that, i liked how they where done.
I guess it depends on what you're looking for in the end. the ones i suggested are kinda more playful, which appealed to me.